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Can you please describe 3 cell structures that a plant cell has that an animal cell does not have.

Chloroplasts- green organelle that contains chlorophyll which absorbs sunlight needed for photosynthesis (LIKE A SOLAR PANEL) Cell wall - they have in addition to a cell membrane a cell wall made of cellulos...
JD
Answered by Jonathan D. • Biology tutor
3180 Views

Compare how poets present attitudes towards a romantic love in ‘Love’s Philosophy’ and in one other poem from ‘Love and relationships’.

‘Love’s philosophy’ by Shelley and ‘When we two parted’ by Lord Byron both explore desperation for romantic love through nature. Whilst they both embrace nature, both poets use this semantic field differentl...
MS
Answered by Megan S. • English tutor
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A chemist needs to neutralise aqueous hydrochloric acid solution (currently pH 1) to pH 7 or higher, so it can be safely disposed of. They have access to solid NaCl, NaBr and Na2CO3.

A) Which of the three solids should they add to the acid solution to achieve this? ans: Na2CO3 [1 mark] B) Hence give a balanced chemical equation showing the reaction of the hydrochloric acid with your chos...
AN
2350 Views

How do I know when to use the perfect, the preterite, and the imperfect?

Perfect: As with English, the perfect is used for more recent events - He comido = I have eaten. You would use this probably for something you've done more recently in the day. It can also describe actions w...
EV
Answered by Emma V. • Spanish tutor
2146 Views

A bowling ball is thrown into the alley, having velocity of 3 ms^-1 at the start of the bowling alley. It decelerates at a constant rate, before hitting the skittles at 2 ms^-1 after 4 s A) calculate the acceleration of the ball.

A) acceleration (m/s2) = change in velocity (m/s) / time (s) A) -1.0 ms -1 / 4 s = -0.25 ms -2 B) Calculate the displacement the ball travelled before hitting the skittles and hence calculate the average vel...
AN
Answered by Alexander N. • Physics tutor
3284 Views